CVE-2026-54527GHSA-F962-V9HR-PFG5PYSEC-2026-2540PYSEC-2026-2541
JupyterLab Git: Stored XSS leading to RCE
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 0.54.0
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: poc
- Automatable: no
- Technical impact: partial
Summary
JupyterLab Git is a Git extension for JupyterLab. From 0.30.0b3 before 0.54.0, the PlainTextDiff.ts createHeader() method passes Git filenames directly to innerHTML when rendering renamed files in commit history, allowing a crafted filename to execute JavaScript when a victim views the rename diff in the Git History tab. This issue is fixed in version 0.54.0.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- jupyterlab jupyterlab-git
From 0.30.0b3 · fixed in 0.54.0
- jupyterlab-gitPyPI
From 0.30.0b3 · fixed in 0.54.0
- jupyterlab-git-corePyPI
From 0.30.0b3 · fixed in 0.54.0
- @jupyterlab/gitnpm
From 0.30.0-beta.3 · fixed in 0.54.0